It's been a while since I've been in school (10yrs). I'm a little rusty at all my math. I wonder if someone could prove how the first formula is the same as the second.
Subtract from both sides
Divide both sides by
I see that this is not the same as the second formula you posted. Yours was
I don't even have an idea what formula is this. It looks like the change of position formula of a constant acceleration, without time. Which is,
as the change of position,
and as the first and last velocities,
as the constant acceleration
Your absolutely right there was a typo in the second equation. I was quite tired when I entered the equation. The equation involves distance rather than " t " time as well. My second lesson here is the importance of proof reading my equations. Thanks again.